CN212515319U - Horizontal light path structure and projector - Google Patents
Horizontal light path structure and projector Download PDFInfo
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- CN212515319U CN212515319U CN202021657825.8U CN202021657825U CN212515319U CN 212515319 U CN212515319 U CN 212515319U CN 202021657825 U CN202021657825 U CN 202021657825U CN 212515319 U CN212515319 U CN 212515319U
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- 239000011521 glass Substances 0.000 claims description 20
- 238000003384 imaging method Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 description 13
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a horizontal light path structure, include collimating lens, LCD screen and the focus lens that sets gradually along horizontal light path direction, collimating lens's length is 107.91-131.89 millimeters, the width is 64.35-78.65 millimeters, thickness is 1.62-1.98 millimeters, the focus is 110 millimeters, focus lens's length is 108.00-132.00 millimeters, the width is 63.00-77.00 millimeters, thickness is 1.62-1.98 millimeters, the focus is 160 millimeters; the size of the LCD screen is 5 inches, the distance between the LCD screen and the light incident surface between the collimating lens is 15.21-18.59 millimeters, and the distance between the LCD screen and the light incident surface between the focusing lens is 10.04-12.27 millimeters. The optical elements of the horizontal light path structure are positioned on the same horizontal plane, a 5-inch LCD screen provides projection images, the size and the distance between the optical elements are reasonably designed, the utilization rate of a light source is improved, and the brightness uniformity is also improved. The utility model also discloses a projecting apparatus.
Description
Technical Field
The utility model relates to a projection technique especially relates to a horizontal light path structure and projecting apparatus.
Background
With the increasing application scenes and the increasing application range of projectors, projectors with various sizes appear in the market at present, but due to the unreasonable matching of the sizes and the distances among optical elements in the internal optical path structures of the projectors with different sizes, the problems of poor light source utilization rate, uneven brightness and the like are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies of the prior art, the utility model provides a horizontal light path structure, each optical element is located same horizontal plane, provides the projection image through 5 inches LCD screens to size and interval between each optical element of rational design have improved the light source utilization ratio, have also improved luminance homogeneity.
The utility model also provides a projecting apparatus.
The utility model discloses the technical problem that will solve realizes through following technical scheme:
a horizontal light path structure comprises a collimating lens, an LCD screen and a focusing lens which are sequentially arranged along the direction of a horizontal light path, wherein the length of the collimating lens is 107.91-131.89 mm, the width of the collimating lens is 64.35-78.65 mm, the thickness of the collimating lens is 1.62-1.98 mm, the focal length of the focusing lens is 110 mm, the length of the focusing lens is 108.00-132.00 mm, the width of the focusing lens is 63.00-77.00 mm, the thickness of the focusing lens is 1.62-1.98 mm, and the focal length of the focusing lens is 160 mm; the size of the LCD screen is 5 inches, the distance between the LCD screen and the light incident surface between the collimating lens is 15.21-18.59 millimeters, and the distance between the LCD screen and the light incident surface between the focusing lens is 10.04-12.27 millimeters.
Further, the optical center of the focusing lens is vertically offset by 2.70-3.30 mm compared to the optical center of the lens.
The optical lens further comprises a reflecting mirror arranged behind the focusing lens along the horizontal optical path direction, wherein the reflecting mirror is inclined at 45 degrees, the length of the reflecting mirror is 124.20-151.80 mm, the width of the reflecting mirror is 58.50-71.50 mm, and the thickness of the reflecting mirror is 2.52-3.08 mm.
Furthermore, the optical lens system also comprises an imaging lens arranged in the emergent direction of the reflector, the focal length of the imaging lens is 170 mm, and the distance between the optical axis of the imaging lens and the incident surface of the focusing lens is 59.94-73.26 mm.
Further, the optical center of the imaging lens is vertically offset by 2.70-3.30 mm compared with the optical center of the reflector.
The light-gathering funnel is arranged in front of the collimating lens along the horizontal light path direction, and is provided with a light inlet and a light outlet which are opposite, the length of the light inlet is 14.22-17.38 mm, the width of the light inlet is 9.72-11.88 mm, the length of the light outlet is 100.44-122.76 mm, the width of the light outlet is 57.33-70.07 mm, and the distance between the light inlet and the light outlet is 73.80-90.20 mm; the collimating lens is arranged on the light outlet of the light-gathering funnel.
Further, the LED light source is arranged on the light inlet of the light gathering funnel, and the thickness of the LED light source is 2.34-2.86 millimeters.
The LED display screen further comprises heat insulation glass arranged between the focusing lens and the LCD screen, wherein the length of the heat insulation glass is 108.00-132.00 mm, the width of the heat insulation glass is 67.50-82.50 mm, the thickness of the heat insulation glass is 0.90-1.10 mm, the distance between the heat insulation glass and the light incident surface between the heat insulation glass and the collimating lens is 5.99-7.32 mm, and the distance between the heat insulation glass and the light incident surface between the heat insulation glass and the LCD screen is 9.23-11.28 mm.
Furthermore, a polaroid is attached to the surface of the heat-insulating glass.
A horizontal projector comprises the horizontal light path structure.
The utility model discloses following beneficial effect has: the projector adopts a horizontal light path structure, all optical elements are positioned on the same horizontal plane, a projected image is provided through a 5-inch LCD screen, the size and the distance between all the optical elements are reasonably designed, the utilization rate of a light source is improved, and the brightness uniformity is also improved.
Drawings
Fig. 1 is a schematic view of a horizontal light path structure provided by the present invention;
fig. 2 is a schematic view of a light-gathering funnel provided by the present invention;
fig. 3 is a schematic diagram of a collimating lens provided by the present invention;
fig. 4 is a schematic diagram of a focusing lens provided by the present invention;
fig. 5 is a schematic view of a reflector provided by the present invention;
FIG. 6 is a schematic view of an insulating glass provided by the present invention;
fig. 7 is a schematic upward-biased view of the imaging lens provided by the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
A horizontal projector includes a horizontal light path structure as shown in fig. 1; the horizontal light path structure comprises an LED light source 1, a light-gathering funnel 2, a collimating lens 3, an LCD screen 5, a focusing lens 6 and a reflecting mirror 7 which are sequentially arranged along the direction of a horizontal light path, and an imaging lens 8 which is arranged in the emergent direction of the reflecting mirror 7 and is positioned on the same horizontal plane with the LED light source 1, the light-gathering funnel 2, the collimating lens 3, the LCD screen 5, the focusing lens 6 and the reflecting mirror 7.
The size of the LCD screen 5 is 5 inches, the distance D1+ D2 between the LCD screen and the light incident surface of the collimating lens 3 is 15.21-18.59 mm, and the distance D3 between the LCD screen and the light incident surface of the focusing lens 6 is 10.04-12.27 mm; as shown in fig. 3, the collimating lens 3 has a length A3 of 107.91-131.89 mm, a width B3 of 64.35-78.65 mm, a thickness H3 of 1.62-1.98 mm, and a focal length of 110 mm, and as shown in fig. 4, the focusing lens 6 has a length a6 of 108.00-132.00 mm, a width B6 of 63.00-77.00 mm, a thickness H6 of 1.62-1.98 mm, and a focal length of 160 mm.
As shown in fig. 2, the light-gathering funnel 2 has a light inlet 21 and a light outlet 22 which are opposite to each other, the length a21 of the light inlet 21 is 14.22-17.38 mm, the width B21 is 9.72-11.88 mm, the length a22 of the light outlet 22 is 100.44-122.76 mm, the width B22 is 57.33-70.07 mm, and the distance L between the light inlet 21 and the light outlet 22 is 73.80-90.20 mm; the LED light source 1 is arranged on a light inlet 21 of the light-gathering funnel 2, and the collimating lens 3 is arranged on a light outlet 22 of the light-gathering funnel 2.
The reflector 7 is inclined at 45 degrees, and as shown in fig. 5, the length A7 of the reflector is 124.20-151.80 mm, the width B7 of the reflector is 58.50-71.50 mm, and the thickness H7 of the reflector is 2.52-3.08 mm.
The thickness H1 of the LED light source 1 is 2.34-2.86 mm; the focal length of the imaging lens 8 is 170 mm, and the distance D4 between the optical axis of the imaging lens and the light incident surface of the focusing lens 6 is 59.94-73.26 mm.
Preferably, as shown in fig. 4, the optical center of the focusing lens 6 is vertically offset from the optical center of the lens, and the offset distance C6 is 2.70-3.30 mm, and similarly, as shown in fig. 7, the optical center of the imaging lens 8 is also vertically offset from the optical center of the focusing lens 6 from the optical center of the reflector 7, and the offset distance C8 is 2.70-3.30 mm.
The horizontal light path structure further comprises heat insulation glass 4 arranged between the focusing lens 6 and the LCD screen 5, as shown in fig. 6, the length of the heat insulation glass 4 is 108.00-132.00 mm, the width is 67.50-82.50 mm, the thickness is 0.90-1.10 mm, the distance D1 between the heat insulation glass and the light incident surface of the collimating lens 3 is 5.99-7.32 mm, and the distance D2 between the heat insulation glass and the light incident surface of the LCD screen 5 is 9.23-11.28 mm.
Preferably, a polarizer is attached to the surface of the heat insulation glass 4.
The projector adopts a horizontal light path structure, all optical elements are positioned on the same horizontal plane, a projected image is provided through the 5-inch LCD screen 5, the size and the distance between all the optical elements are reasonably designed, the utilization rate of a light source is improved, and the brightness uniformity is also improved.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.
Claims (10)
1. A horizontal light path structure comprises a collimating lens, an LCD screen and a focusing lens which are sequentially arranged along the direction of a horizontal light path, and is characterized in that the length of the collimating lens is 107.91-131.89 mm, the width of the collimating lens is 64.35-78.65 mm, the thickness of the collimating lens is 1.62-1.98 mm, the focal length of the focusing lens is 110 mm, the length of the focusing lens is 108.00-132.00 mm, the width of the focusing lens is 63.00-77.00 mm, the thickness of the focusing lens is 1.62-1.98 mm, and the focal length of the focusing lens is 160 mm; the size of the LCD screen is 5 inches, the distance between the LCD screen and the light incident surface between the collimating lens is 15.21-18.59 millimeters, and the distance between the LCD screen and the light incident surface between the focusing lens is 10.04-12.27 millimeters.
2. The horizontal optical path structure according to claim 1, wherein the optical center of the focusing lens is vertically offset by 2.70-3.30 mm compared to the optical center of the focusing lens.
3. The horizontal optical path structure of claim 1, further comprising a mirror disposed behind the focusing lens in the horizontal optical path direction, wherein the mirror is inclined at 45 ° and has a length of 124.20-151.80 mm, a width of 58.50-71.50 mm, and a thickness of 2.52-3.08 mm.
4. The horizontal light path structure according to claim 3, further comprising an imaging lens disposed in the exit direction of the reflector and located at the same horizontal plane as the reflector, wherein the focal length of the imaging lens is 170 mm, and the distance between the optical axis of the imaging lens and the light incident surface of the focusing lens is 59.94-73.26 mm.
5. The horizontal optical path structure according to claim 4, wherein the optical center of the imaging lens is vertically offset by 2.70-3.30 mm compared to the optical center of the reflector.
6. The horizontal light path structure according to claim 1, further comprising a light-gathering funnel disposed in front of the collimating lens along the horizontal light path direction, the light-gathering funnel having opposite light inlet and light outlet, the light inlet having a length of 14.22-17.38 mm and a width of 9.72-11.88 mm, the light outlet having a length of 100.44-122.76 mm and a width of 57.33-70.07 mm, and the distance between the light inlet and the light outlet being 73.80-90.20 mm; the collimating lens is arranged on the light outlet of the light-gathering funnel.
7. The horizontal light path structure of claim 6, further comprising an LED light source disposed on the light inlet of the light-gathering funnel, wherein the thickness of the LED light source is 2.34-2.86 mm.
8. The horizontal light path structure of claim 1, further comprising a heat insulating glass disposed between the focusing lens and the LCD panel, wherein the heat insulating glass has a length of 108.00-132.00 mm, a width of 67.50-82.50 mm, a thickness of 0.90-1.10 mm, an in-plane distance between the heat insulating glass and the collimating lens of 5.99-7.32 mm, and an in-plane distance between the heat insulating glass and the LCD panel of 9.23-11.28 mm.
9. The horizontal light path structure of claim 8, wherein a polarizer is attached to the surface of the heat-insulating glass.
10. A horizontal projector comprising the horizontal light path structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021657825.8U CN212515319U (en) | 2020-08-11 | 2020-08-11 | Horizontal light path structure and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021657825.8U CN212515319U (en) | 2020-08-11 | 2020-08-11 | Horizontal light path structure and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212515319U true CN212515319U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021657825.8U Active CN212515319U (en) | 2020-08-11 | 2020-08-11 | Horizontal light path structure and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212515319U (en) |
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2020
- 2020-08-11 CN CN202021657825.8U patent/CN212515319U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Horizontal Optical Path Structure and Projector Effective date of registration: 20221013 Granted publication date: 20210209 Pledgee: China Co. truction Bank Corp Guangzhou green finance reform and innovation pilot area Huadu Branch Pledgor: Guangzhou Rigal Electronics Co.,Ltd. Registration number: Y2022980018278 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |